Project Overview
Project Name: Deployment of a 261 kWh BESS integrated with a rooftop solar PV system 110 kWp at the True Sound EV Charging Station.
Location: Vinh Yen, Phu Tho Province, Vietnam.
Implementation Timeline: December 2025.
Executing Unit: GG Industries.
2. Project Objectives
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Ensure stable charging capacity at the EV station during peak hours.
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Maximize the efficiency of rooftop solar energy utilization.
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Reduce electricity costs by storing and using power during off-peak periods.
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Contribute to relieving local grid load and enhancing operational reliability.
3. Key Technical Specifications
| Category | Details |
|---|---|
| System Capacity | 261 kWh |
| Loại pin | Li-ion (LFP) |
| PCS | 125 kW |
| Features | Bidirectional charging/discharging, smart EMS integration |
| Monitoring System | Remote monitoring via IoT platform |
| Safety Protection | Integrated BMS, fire prevention, circuit breaker, overvoltage protection |
4. Challenges & Solutions
Challenges:
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Large fluctuations in EV charging loads, creating pressure on the power grid.
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Integration of the solar PV system into the energy infrastructure.
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Limitations in the capacity of the local medium-voltage distribution lines.
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Strict safety requirements when integrating battery systems with fast DC chargers.
Solutions:
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Optimize the design of a distributed energy storage system integrated with rooftop solar.
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Integrate an Energy Management System (EMS) to intelligently coordinate power distribution.
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Install a remote monitoring system for early detection of battery and system issues.
5. Expected Outcomes
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Reduce EV charging station operating costs by up to 30% by utilizing off-peak electricity.
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Ensure 100% stable charging capacity during peak hours without disruption.
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Relieve up to 150 kW of load on the local grid during peak demand periods.
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Enhance the image of a green and sustainable EV charging station in Vinh Yen.
